diff --git a/CMakeLists.txt b/CMakeLists.txt
index db47691f6..d9bf9da04 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,8 +27,8 @@ include(SetPlatformFeatures)
 include(SystemInformation)
 
 # External packages
-find_package(BISON)
-find_package(FLEX)
+find_package(BISON 2.5 REQUIRED)
+find_package(FLEX REQUIRED)
 
 # Modules
 add_subdirectory("modules")
diff --git a/README.md b/README.md
index 8faab0ad4..3049431f1 100644
--- a/README.md
+++ b/README.md
@@ -118,6 +118,8 @@ sudo apt-get install -y binutils-dev uuid-dev flex bison
 ### MacOS: install required packages
 ```shell
 brew install flex bison
+# Homebrew bison is not available from PATH, the system one (2.3) is too old
+export PATH="$(brew --prefix bison)/bin:$PATH"
 ```
 
 ### Windows: install required packages